Puller device



April 3, 1934., paw 1,953,8 9-

7 FULLER DIE-VICE Filed Sept. 14, 1935 llauz'sIiDamm Patented Apr. 3,1934 This invention relates to a puller device designed primarily forpulling sleeves of the cylinders of tractors, but it is to be understoodthat the device is adapted for use in any connection for which it may befound applicable, and the invention has for its object to provide, in amanner as hereinafter set forth, a hinged automatically adjustabledevice of the class referred to so constructed as to enable itsemployment for pulling sleeves of various diameter thereby overcomingthe necessity of using independent pullers for sleeves of differentdiameters, and further whereby one puller in accordance with thisinvention may be employed for pulling the sleeves of a trac- '15. torwhen such sleeves are of different diameters.

Further objects of the invention are to provide, in a manner ashereinafter set forth, a puller device for the purpose referred to,which is simple in its construction and arrangement, strong,durlg'0;able, compact, automatically adjustable, readily assembled,thoroughly eificient in its use, and comparatively inexpensive tomanufacture.

To the above ends essentially and to others which may hereinafterappear, the invention con- 25.' sists of such parts, and suchcombination of parts which fall within the scope of the invention asclaimed.

In the drawing:

Figure 1 is a fragmentary view in vertical sec- I tion of a tractorshowing the adaptation with the sleeve of a cylinder thereof of thesleeve puller device, the latter being shown in elevation.

Figure 2 is an elevation of the coupling element of the device andshowing the adjusted and nor- 3'51 mal positions of said element in fulland dotted lines respectively.

Figure 3 is an elevation of the pulling element of the device.

Figure 4 is an edge view of the coupling element. Referring to thedrawing, 1 denotes the body of a cylinder block in which is arranged thecylinder 2, the latter being provided with a sleeve 3 having a dependinglower portion 4 providing a freed inner edge 5. The head for the body 1of the block is not shown. The head, not shown, is constructed for thepassage of spaced tie members 6 in the form of rods extended upwardlyfrom the top of the body 1. The lower end marginal portion of the innerface of sleeve 3 is beveled as at '7. The inner end portion of sleeve 3is reduced to provide a shoulder 7'. The foregoing is of knownconstruction, and is illustrated for the purpose of showing theadaptation of the puller device with respect to the sleeve 3.

The puller device, in accordance with this invention, consists of asleeve coupling element 8, a pulling element 9, an abutment element 11and a shifting element 10 for the pulling element 9.

The element 8 comprises a body of inverted V-forrn constructed of anysuitable metallic material of the desired length, width and thickness.The body of element 8 consists of three sections indicated at ll, 12 and13. The section 11 includes an outwardly directed inclined side part 14,

a top part 15 of arcuate contour and an outwardly directed inclined sidepart 16 of less length than part 14. The parts 14 and 16 merge at theirinner ends into the ends of part 15, are disposed at an outwardinclination with respect to the latter and incline in oppositedirections with respect to each other. The part 16 is rabbeted on frontand rear faces thereof to form said part with a reduced end portion 17and on its front and rear face transversely thereof with a straightinner shoulder 18 merging into an inclined outer I5, shoulder 19. Theouter corner at the free end of the reduced portion 17 is cut off toform an inclined edge portion 20. The free or outer end portion of theside part 14 at its outer side edge is grooved at 21 to provide a pocketand a jaw 22. 80, The groove is spaced adjacent the outer or free endedge 23 of side part 14. The section 12 consists of an outwardlydirected inclined body part 24 having its inner end portion bifurcatedto provide a furcation 25 and a pair of arms 25, 26. Each arm has itsend edge formed with a straight portion 28 and an inclined portion 29which oppose respectively the inner shoulder 18 and outer shoulder 19.The inclined portions 28 are oppositely disposed with respect to theouter shoulder 19. The reduced end portion 17 of section 11 is arrangedwithin the furcation 25. The outer end portion 30 of the side part 24 atits outer side edge is grooved, as at 31 to provide a pocket and a jaw32. The jaw 32 is spaced adjacent the outer end edge 33 of side part 24.The section 13 is in the form of a rivet 34 having each end upset toform a head 35. The reduced end portion 17 and arms 25', 26 are formedwith registering openings 36,

37 and 38 respectively through which extend the rivet 34 and the latter,in connection with the head 35 provide a permanent hinge connectionbetween side part 16 and body part 24. The inner end edge of body part24 is spaced from the body of side part 16. The outer end of side part16 is spaced from the body of body part 24. The construction referred toprovides a coupling element 8 of inverted V-form having one of its sidesincluding a pivoted portion to provide for the adjustability of suchelement whereby it may be 1-10 so i employed for pulling sleeves ofdifferent diameters. When element 8 is in active position, it isarranged within and extends from the inner end of sleeve 3, and with theinner edge of the latter seated within the pockets provided by thegrooves 21, 31. The jaws 22, 32 bearing against the outer face of thereduced inner portion of sleeve 3.

The pulling element 9 consists of a bar 36' of the desired length anddiameter formed at one end with an eye 37'. The bar 36 is provided withperipheral threads 38.

The abutment element 11 is in the form of a flat plate 39 for seating onthe tie members or rods 6 and is provided with an opening 40 positionedin alignment with the axis of sleeve 3.

The shifting element 10 coacts with the abutment element 11 for shiftingthe pulling element 9 and is in the form of a nut 41.

The eye 37' of element 9 is for the passage of the top of the couplingelement 8. The opening 40 in element 11 is for the passage of bar 36'.The nut 41 is for engagement with the threaded portion 38 of element 9and for bearing against the upper face of plate 39. Now when thecoupling element 8 is positioned relatively to sleeve 3 in the manner asshown in Figure l, and the other parts of the device arranged as shownin Figure 1, on revolving of element 10 in a clockwise direction, theelement 9 will be shifted outwardly whereby element 8 will act to pullthe sleeve 3 the necessary distance to enable the sleeve to be actedupon by any suitable means to cause the complete Withdrawal thereof.

What I claim is:-

In a sleeve puller device, a body of inverted V- form consisting of anarcuate top part merging at its ends into the upper ends of a pair ofoppositely disposed outwardly inclined side parts, one of greater lengththan the other, said side part of shortest length having the majorportion of its length of reduced thickness with respect to and arrangedoutwardly of and merging into the lower end of the remaining portion ofsaid short side part to provide the latter with a pair of spacedparallel edges, each consisting of a straight inner portion and anupwardly inclined outer portion, the said portion of reduced thicknesshaving its lower end edge of a contour corresponding to said edges, amovable side part forming an outwardly inclined lengthwise continuationof the said side part of shortest length and having its upper portionbifurcated for overlapping the said portion of reduced thickness, meansfor pivotally connecting said bifurcated portion intermediate its endsto said portion of reduced thickness, said bifurcated portion having itspair of spaced parallel upper end edges formed with straight innerportions opposing the said other straight portions and a pair of outerportions inclining away from said other inclined portions, and said sidepart of greatest length and said movable side part being formed inproximity to their lower ends and at their outer sides with pockets andtongues of square cross section and with each tongue forming the outerwall of a pocket.

LOUIS H. DAMM.

